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Home > Success Center > Server & Application Monitor (SAM) > SAM - Knowledgebase Articles > Ephemeral Port Exhaustion

Ephemeral Port Exhaustion

Updated October 19th, 2016


There is a problem in SAM port monitors where they go intermittently unknown.


All versions of SAM


Error found in C:\ProgramData\Solarwinds\Collector\Logs




2013-07-23 07:31:21,331 [44] FATAL SolarWinds.Orion.Core.Common.RemoteFeatureManager - Unable to load Feature Manager data from SWIS

System.InsufficientMemoryException: Insufficient winsock resources available to complete socket connection initiation. ---> System.Net.Sockets.SocketException: An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full


You can also verify the issue via running the following command from the command prompt:


Netstat -aon


The output of said command will show you the port utilization.  The expected result is that they have page upon page of ports that are in a TimeWait or a CloseWait state.


Please following the instructions on the following Mind Touch article:


How to increase ephemeral port allowances


*****Pushing out the port allowances is not a true fix in most cases. Please see the following article to troubleshoot the cause of the increased TCP port usage:


Check Emphemeral Ports in use


 For more information, you may visit: 

Error Message: The name limit for the local computer network adapter card was exceeded  (© 2016 Microsoft, available at, obtained on November 23, 2016.)



Disclaimer: Please note, any content posted herein is provided as a suggestion or recommendation to you for your internal use. This is not part of the SolarWinds software or documentation that you purchased from SolarWinds, and the information set forth herein may come from third parties. Your organization should internally review and assess to what extent, if any, such custom scripts or recommendations will be incorporated into your environment.  You elect to use third party content at your own risk, and you will be solely responsible for the incorporation of the same, if any.



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